From 6bfc49197eba070b799ab4ca8755d3a9fd1700da Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Mon, 18 Apr 2016 17:07:44 -0400 Subject: [PATCH] f2fs: issue cache flush on direct IO Under direct IO path with O_(D)SYNC, it needs to set proper APPEND or UPDATE flags, so taht f2fs_sync_file can make its data safe. Acked-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/data.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index e54489b970ae..38ce5d6f8583 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -673,6 +673,9 @@ next_block: err = reserve_new_block(&dn); } else { err = __allocate_data_block(&dn); + if (!err) + set_inode_flag(F2FS_I(inode), + FI_APPEND_WRITE); } if (err) goto sync_out; @@ -1685,8 +1688,12 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter, trace_f2fs_direct_IO_enter(inode, offset, count, iov_iter_rw(iter)); err = blockdev_direct_IO(iocb, inode, iter, offset, get_data_block_dio); - if (err < 0 && iov_iter_rw(iter) == WRITE) - f2fs_write_failed(mapping, offset + count); + if (iov_iter_rw(iter) == WRITE) { + if (err > 0) + set_inode_flag(F2FS_I(inode), FI_UPDATE_WRITE); + else if (err < 0) + f2fs_write_failed(mapping, offset + count); + } trace_f2fs_direct_IO_exit(inode, offset, count, iov_iter_rw(iter), err); -- 2.20.1